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Prevent an illegal memory access in readelf when attempting to parse a corrupt ELF file.

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PR 22510
	* readelf.c (load_debug_section): Fail if there are no section
	headers available.
This commit is contained in:
Nick Clifton
2017-11-30 10:25:01 +00:00
parent e8020e54f4
commit f425ec6600
2 changed files with 10 additions and 0 deletions
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4
binutils/readelf.c
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@@ -13574,6 +13574,10 @@ load_debug_section (enum dwarf_section_display_enum debug, void * data)
Elf_Internal_Shdr * sec;
Filedata * filedata = (Filedata *) data;
/* Without section headers we cannot find any sections. */
if (filedata->section_headers == NULL)
return FALSE;
if (filedata->string_table == NULL)
{
Elf_Internal_Shdr * strs;